Communicating the effectiveness, safety, and importance of ICS for asthma control and addressing concerns about their long-term use should occur at all levels of health care. It is also important for clinicians and educators to tailor their communications based on consideration of the patient’s health literacy level. As well, it is crucial to develop a heightened awareness of health disparities and cultural barriers that facilitate more effective communication with minority (ethnic or racial) or economically disadvantaged patients regarding the use of asthma medications that may improve asthma outcomes.
Inhalation begins with the contraction of the muscles attached to the rib cage; this causes an expansion in the chest cavity. Then takes place the onset of contraction of the diaphragm , which results in expansion of the intrapleural space and an increase in negative pressure according to Boyle's Law . This negative pressure generates airflow because of the pressure difference between the atmosphere and alveolus. Air enters, inflating the lung through either the nose or the mouth into the pharynx ( throat ) and trachea before entering the alveoli. [ citation needed ]